Bunch builder and safety latch



J. L. LYLE Dec. 13, 1938.

BUNCH BUILDER AND SAFETY LATCH 2 Sheets-Sheet 1 Filed June 25, 1957 (Ease Z.Z gla VENTOR.

A TTORNEYS.

J. L. LYLE Dec. 13, 1938.

BUNCH BUILDER AND SAFETY LATCH Filed June 25, 1937 2 sheets-Shea 2 INVENTOR,

ATTORNEYS.

Patented Dec. 13, 1938 UNITED STATES PATENT OFFICE 7 Claims.

This invention relates to bunch building mechanism employed in filling the quills of spinning machines, the primary object of the invention being to provide a safety latch for holding the 5 ring rail of the bunch building mechanism in its lowered position during the bunch forming operation, thereby insuring against the doifer allowing the ring rail to move upwardly higher than the top of the bunch, during the formation of the i bunch, and which usually results in the thread being run onto the quill an inch or two above the bunchbefore starting the building of the bunch.

Another object of the invention is to provide means for regulating the movement .of the safety 15 latch, to insure against the safety latch moving over the ring rail too great a distance.

A still further object of the invention is to provide a latch member which will automatically move to its active position when the ring rail is 20 lowered by the doffer.

With the foregoing and otherobjects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of con- 25 struction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein described, may be made withinthe scope of what is claimed, without departing from the spirit of the in- 30 Vention.

Referring to the drawings:

Figiure 1 is an elevational view of a quill-filling mechanism equipped with a safety latch constructed in accordance with the invention.

35 Figure 2 is a plan view thereof.

Figure 3 is a partial end elevational view thereof of the mechanism carried by the builder arm.

Referring to the drawings in detail, the reference character 5 designates the usual builder arm of a bunch building mechanism employed in filling the quills of spinning machines, the arm .5

being pivotally mounted on the base of the machine, at 6.

The traverse chain is indicated by the reference character 1, and connects with the usual actuating arm of the ring rail 8, and transmits movement of the builder arm to the ring rail, feeding 58 the yarn to the quill, during the filling operation of the quill.

It will of course be understood that the ring rail is of the usual and well known construction, and operates to guide the yarn as it is being fed 5 onto the quill, thereby insuring. against the-filling becoming tangled and irregularly formed on the quill.

The reference character 9 designates an elongated plate, which is pivotally mounted on the builder arm, by means of the bolt Hi, the plate 5 having a laterally extended arm ll that extends under the builder arm 5, as clearly shown by Figure l of the drawings, the arm ll being provided with a threaded opening to accommodate the adjusting screw I2, which is supplied with 10 a lock nut [3, whereby the adjusting screw may be held in various positions of adjustment. Due to this adjustment, it will be seen that the plate 9 may be rocked on its pivots to adjust the plate with respect to the builder arm.

Mounted on the plate 9, and extending laterally therefrom, is a roller indicated by the reference character M, which roller lies in the path of travel of the main cam which operates the builder arm during the operation to fill the quills.

Pivotally mounted on the bolt It, is a curved arm 15 that has a plurality of teeth 16, formed along the upper curved edge thereof. A pin indicated by the reference character l1, extends from the plate 9 and engages one edge of the curved arm l5, restricting movement of the curved arm in one direction.

The main cam for operating the builder arm 5 during the quill filling operation, is indicated bythe reference character 18' andis mounted for rotary movement with the shaft 19. This shaft l9 also provides a support for the bunch cam 20 which is secured .to the main cam l8, to rotate therewith. Thisbunch cam 20, cooperates'with the teeth It of the curved arm 15, the construction of the cam and teeth being such that as the bunch cam rotates, it will move over the .teeth It forcing the builder arm downwardly, and transmitting a slight movement to the ring rail 8, in the formation of the bunch. It might befurther 40 stated, that during the operation of the bunch cam to move the curved arm I5 vertically to operate the builder arm 5, the bunch cam also operates to move the curved arm I5 to the right.

It will of course be understood that as this cam 20 is contacting with the teeth Hi, the builder arm is only actuated a short distance, necessary for the formation of the bunch.

Secured to the curved arm I5, and extending laterally therefrom, is a bolt indicated by the reference character 2|, which bolt is provided with a head 22 that engages the link 230pe1ating in conjunction with the arm l5. This" link 23 is formed with an elongated opening 24 through which the bolt 2| extends, the construction of the elongated opening being such that sliding movement of the link 23 with respect to the arm I5, will be permitted.

The link 23 is provided with a right angled end portion 25 that is formed with a threaded opening to receive the threaded end of the adjusting rod 26, which is provided with a lock nut 21 adapted to be wedged against the right angled end portion 25, securing the adjusting rod 26 in its adjusted position.

The opposite end of the adjusting rod 26 extends into the link 28, where it is secured in its positions of adjustment by the lock nut 29.

The'latch member, forming an important feature of the present invention, is mounted on the shaft 30, that in turn is pivotally mounted in the bearings 3| that are bolted to the base rail 32, by means of the bolts 33. Mounted on one end of the shaft 30, is an adjustable collar 33' held in its positions of adjustment by means of the set screw 34. Secured to the collar 33', is a coiled spring 35, which has one end thereof secured to one of the bearings 3|, as shown by Figure 2 of the drawings. Thus it will be seen that as the shaft 38 is moved in an anti-clockwise direction, the spring 35 is placed under tension, so that when pressure against the shaft 30 is relieved, in one direction, the coiled spring 35 will act to rotate the shaft 39, returning the shaft to its normal position. The latch arm is indicated by the reference character 36, and is secured to the shaft 30, to rotate therewith. The reference character 31 designates the latch head, which is held on the latch arm 36, by means of the lock nuts 38 that are disposed above and below the latch head 31. Set screw 39 extends through the latch head, and further secures the latch head in position.

Forming a part of the latch arm mounting, is an adjusting screw 40 that extends through the latch arm mounting and is adapted to engage the forward edge of the base rail 32. Thus it will be seen that due to this construction, the latch arm 36, together with the latch head 37, may be adjusted with respect to the ring rail 8 so that the required movement of the latch head with respect to'the ring rail 8, may be assured.

The lever for operating the shaft 35, is indicated by the reference character 4|, and is adjustably secured to the shaft 38, by means of the set screws 42, the lever 4! being provided with a plurality of spaced openings 43, for the reception of the bolt 44 that connects the link 28 with the lever 4|.

It might be further stated, that the shaft [0 on which the arm i5 is pivotally mounted, is provided with an adjustable collar 55 to which one end of the coiled spring 46 is secured, the opposite end 'of the coiled spring being anchored to the arm l5, so that when the arm I5 is moved to the right, the coiled spring 46 will be placed under tension, to return the arm to its normal position, in a manner to be hereinafter more fully described. As clearly shown by Figure 1 of the drawings, the latch head 31 is constructed in such a way as to provide a shoulder 41 that contacts with the lug 48 bolted to the ring rail 8. The latch head 31 is also formed with an inclined surface or edge 49 so that the ring rail in moving downwardly over the latch head, will cam the latch head laterally, allowing the ring rail to pass to the position as shown by Figure 1.

The operation of the mechanism is as follows: Assuming that the mechanism is operating in In this position, the main cam I8 is riding over the roller l4, but owing to the fact that the teeth I6, are contacting with the teeth of the bunch cam 20, the builder arm will not be affected by the cam. As the cam 26 rotates over the teeth 3 of the arm 15, the builder arm is moved vertically only a slight distance, or a distance sufficient to cause the formation or" the bunch. While the bunch cam 20 operates to move the arm i5 and builder arm 5 vertically in the formation of the bunch, it is also obvious that the operation of the cam 20 will be to move the arm I5 to the right. When the arm l5 reaches the end of the. elongated opening 24, further movement of the cam 20 will act to swing the safety latch lever ii to the right,

swinging the safety latch to the left, releasing the ring rail. The arm I5 is moved to the right, or

- to a position where the end of the arm l5 engages the bunch cam 20. The main cam l8 bearing against the roller M, will operate to move the builder arm vertically operating the mechanism to feed the thread to the quills to properly fill the quills.

After the quills have been filled, the dofier moves the ring rail downwardly to the position which it assumes during the bunch building op.

eration. The builder arm '5 having been lowered, the arm 55 will be swung to its normal position for bunch building, and the latch head will secure the ring rail in its 1ower-most position, thereby insuring against the dofier allowing the ring rail to move upwardly higher than the top of the bunch, during the formation of the bunch.

Having thus described the invention, what is claimed, is:

l. The combination with the builder arm, ring rail, bunch cam and main cam of a quill filling mechanism, of a latch member adapted to move over the ring rail restricting movement of the ring rail when the ring rail has been moved to a dofiing position, a latch lever connected with the latch member, an arm having teeth engaging the bunch cam and moved by the bunch cam, a rod connecting the latch lever and arm having teeth, whereby movement of said arm operates the latch member releasing the ring rail.

2. The combination with the builder arm, ring rail and bunch cam of a quill filling mechanism, of a means for restricting vertical movement of the ring rail, said means including a pivoted latch member adapted to move over the ring rail securing the ring rail against movement, and means controlled by the action of the bunch cam for operating the pivoted latch member, releasing the ring rail.

8. A quill'filling and bunch forming mechanism comprising a pivoted builder arm, a ring rail, a chain for transmitting movement of the builder arm to the ring rail, a main cam and a bunch cam operating above the builder arm, a latch member adapted to engage the ringe rail,

holding the ring rail in a predetermined position during the bunch forming operation, and means controlled by the action of the bunch cam for moving the latch member releasing the ring rail.

4. A quill filling and bunch forming mechanism, comprising a pivoted builder arm, a ring rail, a chain for transmitting movement of the builder arm to the ring rail, a main cam and a bunch cam operating the builder arm to move the builder arm vertically, a latch member adapted to engage the ring rail to hold the ring rail in a predetermined position, during the bunching operation, said latch member including an arm having teeth, engaged by the bunch cam, and said bunch cam adapted to operate the arm moving the latch member out of contact with the ring rail, releasing the ring rail for vertical movement.

5. The combination with the builder arm, ring rail, bunch cam and main cam of a quill filling mechanism, of a latch member adapted to move over the ring rail holding the ring rail against vertical movement, said latch member including a pivoted arm mounted on the builder arm and having teeth adapted to be engaged by the bunch cam moving the builder arm vertically, and said bunch cam adapted to move the pivoted arm laterally operating the latch member and releasing the ring rail.

6. The combination with the builder arm, ring rail, bunch cam and main cam of a quill filling mechanism, of a pivoted latch member comprising a pivoted member adapted to move over the ring rail restricting movement of the ring rail, a

pivoted arm mounted on the builder arm, connecting means between the pivoted arm and pivoted member whereby movement of the pivoted arm operates the pivoted latch member, releasing the ring rail, and said bunch cam adapted to operate the pivoted arm.

7. A quill filling and bunch forming mechanism, comprising a pivoted builder arm, a ring rail, a chain for transmitting movement of the builder arm to the ring rail, a main cam and a bunch cam operating over the builder arm, an arm pivotally mounted on the builder arm and engaged by the bunch cam for moving the builder arm vertically in forming the bunch on a quill, a latch member adapted to hold the ring rail against upward movement when the builder arm is operating to build the bunch, and means controlled by the action of the second mentioned arm for releasing the latch and ring rail.

JESSE LEE LYLE. 

